Hinge

ABSTRACT

A hinge having an elongate pintle and an elongate tubular hinge member mounted on the pintle for rotary movement thereon and vertical sliding movement thereon. An inclined generally circular track surrounds the lower end of the tubular member and the pintle. A roller on the tubular member rides the circular track to raise the tubular member on the pintle as the tubular member revolves on the pintle. A compression spring bearing against the top of the tubular member normally urges the tubular member downwardly on the pintle to normally maintain the hinge in a closed door position.

United States Patent 1 Moen [ HINGE [76] Inventor: Selfred Moen, RouteNo. 1 Madison,

Minn.

[22] FllBdZ July 30, 1971 [21] Appl. No.: 167,590

[52] U.S. CI. 16/189, l6/153 [51] Int. Cl E05f 1/12 [58] Field of Search16/189,154,153,

[56] References Cited UNITED STATES PATENTS 700,694 5/1902 Marr 16/1862,628,441

2/1953 Enghauser 16/154 June 19, 1973 Primary Examiner-James T. McCallAssistant ExaminerDoris L. Troutman AttorneyBerman, Davidson and Herman[57] ABSTRACT 5 Claims, 4 Drawing Figures PATENIED JUN I 9 I973 INVENTORMOE/V,

65. FEED I m 02602; {M I TTORNEY HINGE BACKGROUND OF THE INVENTION FIELDOF THE INVENTION The present invention relates to hinges of the typeattached to doors normally maintained in a closed position by action ofthe hinge.

SUMMARY OF THE INVENTION The hinge of the instant invention includes anelongate pintle having an elongate tubular hinge member mounted thereonfor rotary and sliding movement. A circular inclined track on the pintlemember is engaged by a roller on the tubular member so that as thetubular member rotates on the pintle it is raised with respect to thepintle. A compression spring engages the top of the tubular member tonormally urge the tubular member downwardly on the pintle.

The primary object of the invention is to provide a hinge which willnormally return to a closed door position when released from the effortsto open the door.

Other objects and advantages will become apparent in the followingspecification in light of the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view of theinvention;

FIG. 2 is a side elevation of the invention;

FIG. 3 is an end elevation of the invention; and

FIG. 4 is a view similar to FIG. 3 with the door shown in open position.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings indetail wherein like reference characters indicate like parts throughoutthe several figures, the reference numeral indicates generally anelongate hinge constructed in accordance with the invention.

The elongate hinge 10 includes a bracket 11 having an upright bar 12which is adapted to be secured to a stationary wall. The upright bar 12has a bottom plate 13 integrally secured thereto and extendingperpendicularly outwardly therefrom. A plate 14 is integrally secured tothe upper end of the bar 12 and extends perpendicularly outwardlytherefrom parallel to the plate 13.

A ring 15 extends from the outer end of plate 13 up wardly andrearwardly to the bar 12. The ring 15 is welded at 16 to the plate 13and is welded at 17 to the bar 12 to secure the ring 15 in an upwardlyand inwardly sloping relation to the bracket 11.

A pintle shaft 18 extends through the plate 13 and the plate 1d andextends parallel to the bar 12. The pintle shaft 18 has a cotter key 19extending through its lower end and a cotter key 20 extending throughits upper end to secure the pintle shaft 18 in the bracket 11.

A hinge leaf generally indicated at 21 includes an elongate tubularportion 22 journaled on the pintle shaft 18 and having a length somewhatless than the distance between the plate 13 and the plate 14 to permitvertical sliding movement of the tubular member 22 on the pintle shaftiii. A coil spring 23 engaged about the pintle 18 engages beneath theplate 14 and on top of the tubular portion 22 to normally urge the hingeleaf 21 downwardly on the pintle shaft 18.

A plate 24 is welded to the upper end of the tubular portion 22 and isadapted to be attached to a swinging door conventionally by means ofscrews (not shown) passing through the bores 25. A plate 26 is welded tothe lower end of the tubular portion 22 and is adapted to be attached toa door in the :same manner as the plate 24.

An Lshaped rod 27 extends from the outer end of the lower edge of theplate 26 to the lower end of the tubular portion 22 and is welded toeach. A roller 28 is journaled on the rod 27 and is adapted to engagethe ring 15 so as to move the tubular portion 22 upwardly as the tubularportion 22 is rotated on the pintle 18. The pintle 18 is mounted offcenter with respect to the axis of the ring 15 as can be clearly seen inFIG. 1, so that the leverage created between the ring 15 andthe roller28 will decrease as the spring 23 is compressed and will increase whenthe spring 23 is expanded.

The ring T5 is provided with a notch 29 at the lowest point of the ring15 to permit the: roller 28 to engage therein to thus maintain the doorD in closed position against the force of a small animal.

Having thus described the preferred embodiment of the invention, itshould be understood that numerous structural modifications andadaptations may be resorted to without departing from the spirit of theinvention.

What is claimed is:

1. A hinge comprising a vertical bar adapted to be secured to a wall, alower plate integrally formed on said bar and extending perpendicularlythereto, an upper plate integrally formed on said bar and extendingperpendicularly thereto, an elongate pintle secured parallel to said barin said plates in vertically extending relation, a hinge leaf mountedfor rotary and vertical sliding movement on said pintle, a springengaged about the upper end of said pintle engaging the upper end ofsaid hinge leaf for normally urging said hinge leaf downwardly on saidpintle, a ring rigidly secured to said bar and said lower plate in adownwardly and outwardly sloping position and a roller on said hingeleaf for engaging said ring to cam said hinge leaf vertically againstthe tension of said spring upon rotary movement of said hinge leaf onsaid pintle.

2. A device as claimed in claim 1., wherein said pintle is secured tosaid plates in an off-center position with respect to said ring. a

3. A device as claimed in claim 2, wherein said hinge leaf includes apair of plate members rigidly secured thereto and vertically spacedthereon for securing said hinge leaf to a door.

4. A device as claimed in claim 3, wherein an L- shaped rod is securedto one of said plates on said hinge leaf and to a tubular portion onsaid hinge leaf for journaling said roller thereon.

5. A device as claimed in claim 4, wherein notch means on said ringcooperating with said roller normally maintains said hinge leaf in doorclosed position. 1' II I t

1. A hinge comprising a vertical bar adapted to be secured to a wall, alower plate integrally formed on said bar and extending perpendicularlythereto, an upper plate integrally formed on said bar and extendingperpendicularly thereto, an elongate pintle secured parallel to said barin said plates in vertically extending relation, a hinge leaf mountedfor rotary and vertical sliding movement on said pintle, a springengaged about the upper end of said pintle engaging the upper end ofsaid hinge leaf for normally urging said hinge leaf downwardly on saidpintle, a ring rigidly secured to said bar and said lower plate in adownwardly and outwardly sloping position and a roller on said hingeleaf for engaging said ring to cam said hinge leaf vertically againstthe tension of said spring upon rotary movement of said hinge leaf onsaid pintle.
 2. A device as claimed in claim 1, wherein said pintle issecured to said plates in an off-center position with respect to saidring.
 3. A device as claimed in claim 2, wherein said hinge leafincludes a pair of plate members rigidly secured thereto and verticallyspaced thereon for securing said hinge leaf to a door.
 4. A device asclaimed in claim 3, wherein an L-shaped rod is secured to one of saidplates on said hinge leaf and to a tubular portion on said hinge leaffor journaling said roller thereon.
 5. A device as claimed in claim 4,wherein notch means on said ring cooperating with said roller normallymaintains said hinge leaf in door closed position.